/**
 * Proposition.java
 * 
 * Copyright (C) 2012 - Thibault BUREL
 * 
 * This file is part of MathDraft.
 *
 * MathDraft is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MathDraft is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MathDraft.  If not, see <http://www.gnu.org/licenses/>
 *  
 */
package drk.mathdraft.proposition;

public abstract class Proposition {
	/*************************************************************************
	 *                          M E M B E R S                                *
	 *************************************************************************/
	protected Proposition parent;
	protected boolean     selected;
	
	/*************************************************************************
	 *                          M E T H O D S                                *
	 *************************************************************************/
	public Proposition()
	{
		this.selected = false;
	}
	
	public abstract    Proposition copy();
	public abstract    boolean     equals(Proposition p);
	public abstract    Proposition getFirstChild();
	public abstract    String      getIconCommand();
	public abstract    Proposition getNextChild(Proposition current);
	
	public Proposition getParent()
	{
		return this.parent;
	}
	
	public abstract    String      latexCommands(int rootPriority);
	public abstract    void        replaceChild(Proposition o, Proposition n);

	public void select()
	{
		this.selected = true;
	}
	
	public void setParent(Proposition parent)
	{
		this.parent = parent;
	}
	
	public abstract void        unselectAll();
}